Window



a lthe windows, the usual wall space were in.

. to any extent desired, and thus act as an ef window pane;

Patented May 27, 1924.`

UNITED STATES PATENT OFFICE.

RALPH JOHN CARNEY, 0F BOSTON, MASSAQHUSETTS.

WINDOW.

Application filed December-3Q, i920. Serial No. 434,017.'

JOHN CARNEY,

buildings, particularly factories, of modern construction, wherein .alarge part of the wall space is devoted to windows for4 purposes .oflight and ventilation. The use ofso muchv glass` in a buildingnecessarily makes that side of the building much colder than it wouldotherwise be, if, instead of use. In such cases my invention isparticrularly useful as offering a vacuum window pane unit complete,which may be installed in the regular window sash wherever, and

fective barrier against the transmission of cold from without to theinterior of the building, and thereby lessen the additional amount ofheat required to offset the cooling of the enlarged window expanse. Myinvention is also usefulin many other connections as in vehicles,refrigerators, etc., wherever itis desirable to install a window of thiskind without making special preparation therefor in the construction ofthe building or vehicle.

illustrated in the accompanying drawing, in which- Figure 1 is a sectionthrou h one side of an ordinary window sash with a double glass windowpane in place; Fig. 2 isthe ront view of a double glass window pane;Fig. 3 is an ed e view of said double glass ig. 4.- is a section throughsaid double glass window pane on line 4 4, Fig. 2; Fig. 5 is a sectionthrough an airpump terminal which is not a part of this invention but isshown for purposes of il-A lustration: Fig. 6 is a side view of saidairplunp terminal. n

Similar letters refer to similar parts throughout the several views.

My invention is particularly useful iny I 4attain this object by theconstruction In constructing the double glass window pane the separatorsa, preferably of glass, are cemented to one plate or sheet of glass b;the-inner frame c, and the packing d, ofi

rubber or the like -are placed between the` plates or sheets of glass b,then the outer' 4 metal frame e, is pressed or soldered 1n place aroundthe double glass window pane. The packing d, isv normally substantially.

larger than the space which it is intended to occupy so that when it isin place it is under compression. thus rendering theenclosure of innerspace f, air-tight.

The sharp-pointed air-pump terminal g,

is then inserted at the hole'h, piercingthe vertical strip of packing d,and `forced in be# tween theto of the lowerl or bottom strip of packingan thel inner frame, the packing forcing the terminal into closeengagement with the under side of the bottom member of the frame c untilthe opening y', in the side wall of the terminal g, comes opposite theopening c, in the bottom inner frame c member, Fig. 4, t-hus forming anoutlet through which the air`may be 'extracted from thel inner space f,'through the hollow ,f v

air-pump terminal g, making said space a vacuum or semi-vacuum. When the-airpump terminal .9, is withdrawn the packing d, being resilient, willresume its former position thus closing the opening lc.

The space occupied bythe packing d, may be filled with wax, cement,glue, lead or any other metal or material, and a closable orself-closing opening or valve provided for the extraction of the airfrom the inner space f. The frames c, and e, may be `of metal or ofanyother material.

The vacuum-insulated window pane may then beset in an ordinary sashvwith putty as shown in `Fig. 1, or in any other style offrame, openingor sash, by any other method.

A double glass window pane might be made entirely of .glass with avacuum space incorporated therein during the process of manufacture; orit might be made mainly of glass with a partial frame of metal orl othermaterial which vwould enclose in 'con-v junction with said glass aninner space to y be rendered a vacuum by the extractionof the airtherefrom through anopening provided for that purpose and hermeticallysealed after the air had been extracted from the inner space. y

An insulated window pane might be made Vacuum container.

of transparent or semi-transparent material enclosing an inner space andhaving an opening through which the air could be extracted from saidinner` space, said opening to be hermetically sealed after the air hadbeen extracted from the inner space thus establishing a vacuum.

I am aware that the use of a vacuum to retard the passage of heat is notnew as it has been used in What is known as the I therefore do not claiminsulation by means of a vacuum space broadly; but

I claim: 1. A compound window pane-comprising parallel `sheets of glass,means provided 'with an aperture and interposed between and Ico-actingwith said sheets to enclose a hollow` space, reslllent seallng means1nadapted to be perforated by the terminal of an air exhausting means,and -to yield as the terminal is forced into cooperative relation withsaid aperture to ermit exhaustion of the air from the ho low space,

`and to returnfto original condition to seal the aperture when theterminal is drawn.` y

2.'A compound window pane comprising a plurality of sheets b oftransparent material, separators a therefor, an apertured frame c alsofor the sheets and therewith forming an enclosed space, compressiblematerial d surrounding saidframe and'sealing the joints between it andthe panes b and adapted to be punctured by the terminal of an air pump g:for exhausting the air from the space.

RALPH JOHN CARNE Y.

I Vitnesses:

BAsIL R. DEERING, EDGAR C. Bkoss.

